83rechecks service availability or you can check ityourself by pressing any key.Anytime the Power Save feature is activated, amessage displays on the screen. When a signal isfound, your phone returns to standby mode.Understanding How Your Phone OperatesYour phone is basically a radio transmitter andreceiver. When it's turned on, it receives andtransmits radio frequency (RF) signals. When you useyour phone, the system handling your call controls thepower level. This power can range from 0.006 wattsto 0.2 watts in digital mode.Maintaining Your Phone's Peak PerformanceFor the best care of your phone, only authorizedpersonnel should service your phone and accessories.Faulty service may void the warranty.There are several simple guidelines to operating yourphone properly and maintaining safe, satisfactoryservice.• To ensure that the Hearing Aid Compatibility rating foryour phone is maintained, secondary transmitters such asBluetooth and WLAN components must be disabled duringa call.• If your phone is equipped with an external antenna, holdthe phone with the antenna raised, fully-extended andover your shoulder.• Do not hold, bend or twist the phone's antenna, ifapplicable.• Do not use the phone if the antenna is damaged.• If your phone is equipped with an internal antenna,obstructing the internal antenna could inhibit callperformance.• Speak directly into the phone's receiver.• Avoid exposing your phone and accessories to rain orliquid spills. If your phone does get wet, immediately turnthe power off and remove the battery. If it is inoperable,call Customer Care for service.Availability of Various Features/RingtonesMany services and features are network dependentand may require additional subscription and/or usagecharges. Not all features are available for purchase oruse in all areas. Downloadable Ringtones may beavailable at an additional cost. Other conditions andrestrictions may apply. See your service provider foradditional information.Battery Standby and Talk TimeStandby and talk times will vary depending on phoneusage patterns and conditions. Battery powerconsumption depends on factors such as networkconfiguration, signal strength, operating temperature,features selected, frequency of calls, and voice, data,and other application usage patterns.Battery Precautions• Avoid dropping the cell phone. Dropping it, especially on ahard surface, can potentially cause damage to the phoneand battery. If you suspect damage to the phone orbattery, take it to a service center for inspection.• Never use any charger or battery that is damaged in anyway.